-ous cccc cccf cccs cccu ccfc ccff ccoc ccrc ccrf ccrs ccrt ccsf ccss ccst cctc cctt ccuc ccus ccut cfcf cfco cfcs cffr cfor cfos cfrt cftc cftr coco coct cocu cofc coff cofs coft coof coos coot cor- corc corf coro corr cors cort cosc coso coss cost cotc coto cots cott cotu cour cous cout crcc crcr crfc crfs croc croo cror crot crrt crss crst crtc crtf crts crus crut cscc cscf csco cscr cscs csfc csfr csor csos csot csrc csrs cssr cstc csto cstr csts csuf csur csus ctcf ctfc ctfo ctfs ctor ctos ctot ctrc ctrs ctsc ctss ctsu ctts cucc cufc cuff cufo curf curo curr curs curt cuso cuss cust cusu cut- cutc cuto cuts cutt fccf fcot fcsc fcst fcto ffcc ffff ffrr ffss fftf foco focs fofo foof foos foot for- foro forr fors fort foso foss fost foto fots fott four fous fout frcc frfc fros frot frou frsc frso frst fscc fsfo fssc fssf ft-c ftfc ftos ftrs ftsr ftuc fuc- fuct fufc fuff fufu fuor fur- furo furr furs furt fusc fuso fuss fust fusu futo futs futu occc occt ocos ocro ocrr ocrs oct- octo octs ocur ofcr off- offc offo offr offs offu ofor ofst ofus oocr ooff oofs oooo ooos oort oost oots oous orco orcs orff orfs orfu oro- orof oror oros orot orro orrs orso orsu ortc orto orts orus oscc osco osoo osor osos osro osso ossu ostc ostr osts otfc oto- otof otoo otor otos otro otrs otso otsu otto otts ottu otur otus oucc oufc ouff our- ouro ours ourt oust out- outo outs ouu- rccc rccs rcfc rcos rcsc rcss rctc rcts rffc rftc rocc roco rocs rofc roff rofo roof roor roos root rorc roro rort roru rosc roso ross rost rotc roto rotr rots rott rouf rous rout rrfc rrrr rscc rscs rsfc rsos rsts rstu rtcc rtfc rtss rtts ruct rufc ruff rufo ruft rurc ruro rurs ruru ruso russ rust rusu ruto ruts rutt rutu s-os sccc sccs scct scfc scoo scor scot scr- scrc scrs scsc scso scsr scst scsu sctc scto sctr scts scur scut sfcc sfco sfcs sffc sfor sfos sfrc sfro sfss sfsu sfts soco socr socs sofo soft soof soor soos soot soro sorr sors sort soru soso soss sost sotc soto sots sotu souf sour sous sout srcc srct srfc sros srtr sscc sscs ssfc ssoc ssot ssrc ssrs sssc sssf ssss sstc ssts stcc stcs stcu stfc stfu stof stoo stor stos stot stou strc stro strs stru stsf stss sttc sttr stuc stuf stur stus stut suc- succ sucr sucs suf- sufc suff sufr sufs sufu suor suos sur- surc surf suro surr surs surt suru sus- suso suss sust susu suto sutu suus tccc tccu tcfc tcos tctc tcts tfcu tfot tfrs tfss tftc toco toff tofo toft tofu toof toor toos toot torc torf toro torr tors tort toru tosc toso toss tost tosu totc toto totr tots tott tour tous tout trcc trfc trfr troc troo tros trot trou trst trtc trtr truc trus trut truu tscc tsfc tsos tsou tssf tssr tsst tstc tsts ttfc ttff ttss tttt tucc tuco tufc tuff tufo tuft tufu tuor tuos turc turf turo turr turs turt turu tusc tuss tust tuto tuts tutt tutu tuuo ucos ucrc ucsc ucsf ucst ucsu ucut ufcu ufos uocc uofo uor- urff urft uro- uroo urso urss ursu urts urur urus urut uscc uscf usco uscs usfc usfs usoc usos ussc ussf ussr usss usst ussu ustc usto usts usus utfo utor utsc utto uttu uuoc uutf uuuu